{"product_id":"lunt-50mm-ha-etalon-filter-with-b3400-for-2-focuser","title":"Lunt 50mm Ha Etalon Filters With Blocking Filters","description":"\u003ch2 data-start=\"0\" data-end=\"66\"\u003eLunt 50mm H-Alpha Etalon Filter with Blocking Filters (LS50FHa)\u003c\/h2\u003e\n\u003cul data-start=\"68\" data-end=\"1191\"\u003e\n\u003cli data-start=\"68\" data-end=\"223\"\u003e\n\u003cp data-start=\"70\" data-end=\"223\"\u003eTurn your \u003cstrong data-start=\"80\" data-end=\"101\"\u003eLunt ED refractor\u003c\/strong\u003e into a high-contrast \u003cstrong data-start=\"123\" data-end=\"154\"\u003edaytime H-alpha solar scope\u003c\/strong\u003e, then remove the front filter and go right back to night observing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"224\" data-end=\"351\"\u003e\n\u003cp data-start=\"226\" data-end=\"351\"\u003e\u003cstrong data-start=\"226\" data-end=\"256\"\u003e50 mm front-mounted etalon\u003c\/strong\u003e with \u003cstrong data-start=\"262\" data-end=\"288\"\u003eno central obstruction\u003c\/strong\u003e for evenly illuminated full-disk views and crisp limb detail\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"352\" data-end=\"496\"\u003e\n\u003cp data-start=\"354\" data-end=\"496\"\u003e\u003cstrong data-start=\"354\" data-end=\"386\"\u003eIntegrally tuned, tilt-tuned\u003c\/strong\u003e design with an estimated \u003cstrong data-start=\"412\" data-end=\"432\"\u003e\u0026lt;0.70 Å bandpass\u003c\/strong\u003e to reveal prominences, filaments, plages, and surface texture\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"497\" data-end=\"646\"\u003e\n\u003cp data-start=\"499\" data-end=\"646\"\u003e\u003cstrong data-start=\"499\" data-end=\"522\"\u003eDouble-stack ready:\u003c\/strong\u003e add a second etalon to tighten the bandpass to \u003cstrong data-start=\"570\" data-end=\"582\"\u003e~\u0026lt;0.50 Å\u003c\/strong\u003e (scope-dependent) for even higher contrast and fine structure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"647\" data-end=\"813\"\u003e\n\u003cp data-start=\"649\" data-end=\"813\"\u003e\u003cstrong data-start=\"649\" data-end=\"677\"\u003eBlocking filter required\u003c\/strong\u003e for safety and performance—choose the BF size that matches your \u003cstrong data-start=\"742\" data-end=\"758\"\u003efocal length\u003c\/strong\u003e and \u003cstrong data-start=\"763\" data-end=\"775\"\u003eworkflow\u003c\/strong\u003e (larger BF recommended for imaging)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"814\" data-end=\"971\"\u003e\n\u003cp data-start=\"816\" data-end=\"971\"\u003e\u003cstrong data-start=\"816\" data-end=\"849\"\u003eQuick daytime\/nighttime swap:\u003c\/strong\u003e engineered for \u003cstrong data-start=\"865\" data-end=\"896\"\u003eLunt ED80 f\/7 and ED102 f\/7\u003c\/strong\u003e; easily removable so your scope remains a versatile night-sky instrument\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"972\" data-end=\"1096\"\u003e\n\u003cp data-start=\"974\" data-end=\"1096\"\u003eShips protected in an \u003cstrong data-start=\"996\" data-end=\"1035\"\u003ealuminum hard case with fitted foam\u003c\/strong\u003e; compact \u003cstrong data-start=\"1045\" data-end=\"1062\"\u003e~2 lb (≈1 kg)\u003c\/strong\u003e assembly is easy to travel with\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1097\" data-end=\"1191\"\u003e\n\u003cp data-start=\"1099\" data-end=\"1191\"\u003eBuilt and tuned by Lunt Solar Systems for reliable, on-band performance with Lunt refractors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"1193\" data-end=\"1209\"\u003eSpecifications\u003c\/h1\u003e\n\u003cul data-start=\"1210\" data-end=\"1755\"\u003e\n\u003cli data-start=\"1210\" data-end=\"1257\"\u003e\n\u003cp data-start=\"1212\" data-end=\"1257\"\u003e\u003cstrong data-start=\"1212\" data-end=\"1222\"\u003eModel:\u003c\/strong\u003e \u003cstrong data-start=\"1223\" data-end=\"1234\"\u003eLS50FHa\u003c\/strong\u003e H-Alpha front etalon\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1258\" data-end=\"1318\"\u003e\n\u003cp data-start=\"1260\" data-end=\"1318\"\u003e\u003cstrong data-start=\"1260\" data-end=\"1281\"\u003eOptical Aperture:\u003c\/strong\u003e \u003cstrong data-start=\"1282\" data-end=\"1291\"\u003e50 mm\u003c\/strong\u003e (no central obstruction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1319\" data-end=\"1363\"\u003e\n\u003cp data-start=\"1321\" data-end=\"1363\"\u003e\u003cstrong data-start=\"1321\" data-end=\"1349\"\u003eBandpass (single stack):\u003c\/strong\u003e \u003cstrong data-start=\"1350\" data-end=\"1361\"\u003e\u0026lt;0.70 Å\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1364\" data-end=\"1452\"\u003e\n\u003cp data-start=\"1366\" data-end=\"1452\"\u003e\u003cstrong data-start=\"1366\" data-end=\"1394\"\u003eBandpass (double stack):\u003c\/strong\u003e \u003cstrong data-start=\"1395\" data-end=\"1407\"\u003e~\u0026lt;0.50 Å\u003c\/strong\u003e (with additional LS50FHa; scope-dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1453\" data-end=\"1503\"\u003e\n\u003cp data-start=\"1455\" data-end=\"1503\"\u003e\u003cstrong data-start=\"1455\" data-end=\"1466\"\u003eTuning:\u003c\/strong\u003e \u003cstrong data-start=\"1467\" data-end=\"1475\"\u003eTilt\u003c\/strong\u003e (integrally tuned etalon)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1504\" data-end=\"1574\"\u003e\n\u003cp data-start=\"1506\" data-end=\"1574\"\u003e\u003cstrong data-start=\"1506\" data-end=\"1530\"\u003eIntended Telescopes:\u003c\/strong\u003e \u003cstrong data-start=\"1531\" data-end=\"1550\"\u003eLunt ED80 (f\/7)\u003c\/strong\u003e, \u003cstrong data-start=\"1552\" data-end=\"1572\"\u003eLunt ED102 (f\/7)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1575\" data-end=\"1640\"\u003e\n\u003cp data-start=\"1577\" data-end=\"1640\"\u003e\u003cstrong data-start=\"1577\" data-end=\"1589\"\u003eStorage:\u003c\/strong\u003e \u003cstrong data-start=\"1590\" data-end=\"1621\"\u003eAluminum finished hard case\u003c\/strong\u003e with fitted foam\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1641\" data-end=\"1674\"\u003e\n\u003cp data-start=\"1643\" data-end=\"1674\"\u003e\u003cstrong data-start=\"1643\" data-end=\"1654\"\u003eWeight:\u003c\/strong\u003e \u003cstrong data-start=\"1655\" data-end=\"1672\"\u003e~2 lb (≈1 kg)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1675\" data-end=\"1755\"\u003e\n\u003cp data-start=\"1677\" data-end=\"1755\"\u003e\u003cstrong data-start=\"1677\" data-end=\"1693\"\u003eSafety Note:\u003c\/strong\u003e A \u003cstrong data-start=\"1696\" data-end=\"1729\"\u003ematching Lunt Blocking Filter\u003c\/strong\u003e must be used at all times\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1757\" data-end=\"1821\"\u003e\u003cstrong data-start=\"1757\" data-end=\"1819\"\u003eBlocking Filter guidance (choose by focal length and use):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1822\" data-end=\"2204\"\u003e\n\u003cli data-start=\"1822\" data-end=\"1929\"\u003e\n\u003cp data-start=\"1824\" data-end=\"1929\"\u003e\u003cstrong data-start=\"1824\" data-end=\"1832\"\u003eB600\u003c\/strong\u003e – Visual use (full-disk) up to \u003cstrong data-start=\"1864\" data-end=\"1875\"\u003e~540 mm\u003c\/strong\u003e focal length; available in \u003cstrong data-start=\"1903\" data-end=\"1927\"\u003e1.25\" or 2\" diagonal\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1930\" data-end=\"2020\"\u003e\n\u003cp data-start=\"1932\" data-end=\"2020\"\u003e\u003cstrong data-start=\"1932\" data-end=\"1941\"\u003eB1200\u003c\/strong\u003e – Visual \u0026amp; Imaging up to \u003cstrong data-start=\"1967\" data-end=\"1979\"\u003e~1080 mm\u003c\/strong\u003e focal length; \u003cstrong data-start=\"1994\" data-end=\"2018\"\u003e1.25\" or 2\" diagonal\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2021\" data-end=\"2111\"\u003e\n\u003cp data-start=\"2023\" data-end=\"2111\"\u003e\u003cstrong data-start=\"2023\" data-end=\"2032\"\u003eB1800\u003c\/strong\u003e – Visual \u0026amp; Imaging up to \u003cstrong data-start=\"2058\" data-end=\"2070\"\u003e~1620 mm\u003c\/strong\u003e focal length; \u003cstrong data-start=\"2085\" data-end=\"2109\"\u003e1.25\" or 2\" diagonal\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2112\" data-end=\"2204\"\u003e\n\u003cp data-start=\"2114\" data-end=\"2204\"\u003e\u003cstrong data-start=\"2114\" data-end=\"2123\"\u003eB3400\u003c\/strong\u003e – Visual \u0026amp; Imaging up to \u003cstrong data-start=\"2149\" data-end=\"2161\"\u003e~3060 mm\u003c\/strong\u003e focal length; \u003cstrong data-start=\"2176\" data-end=\"2199\"\u003e2\" straight-through\u003c\/strong\u003e tube\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"2206\" data-end=\"2226\"\u003eWhat’s in the Box?\u003c\/h1\u003e\n\u003cul data-start=\"2227\" data-end=\"2492\"\u003e\n\u003cli data-start=\"2227\" data-end=\"2289\"\u003e\n\u003cp data-start=\"2229\" data-end=\"2289\"\u003e\u003cstrong data-start=\"2229\" data-end=\"2273\"\u003eLunt LS50FHa 50 mm H-Alpha Etalon Filter\u003c\/strong\u003e (front-mount)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2290\" data-end=\"2405\"\u003e\n\u003cp data-start=\"2292\" data-end=\"2405\"\u003e\u003cstrong data-start=\"2292\" data-end=\"2325\"\u003eSelected Lunt Blocking Filter\u003c\/strong\u003e (B600 \/ B1200 \/ B1800 1.25\" or 2\" diagonal, or \u003cstrong data-start=\"2373\" data-end=\"2382\"\u003eB3400\u003c\/strong\u003e 2\" straight-through)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2406\" data-end=\"2449\"\u003e\n\u003cp data-start=\"2408\" data-end=\"2449\"\u003e\u003cstrong data-start=\"2408\" data-end=\"2430\"\u003eAluminum hard case\u003c\/strong\u003e with fitted foam\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2450\" data-end=\"2492\"\u003e\n\u003cp data-start=\"2452\" data-end=\"2492\"\u003eBasic documentation and usage guidance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2494\" data-end=\"2657\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cem data-start=\"2494\" data-end=\"2502\"\u003eNotes:\u003c\/em\u003e Lunt recommends pairing Lunt filters with \u003cstrong data-start=\"2545\" data-end=\"2564\"\u003eLunt telescopes\u003c\/strong\u003e to guarantee fit and performance. Adapter plates for third-party telescopes are not offered.\u003c\/p\u003e","brand":"Lunt Solar Systems","offers":[{"title":"with B1800 for 1.25\" Focuser","offer_id":50995205243200,"sku":"LS50FHa1\/ B1800","price":1895.0,"currency_code":"USD","in_stock":true},{"title":"with B1800 for 2\" Focuser","offer_id":50995205275968,"sku":"LS50FHa2\/ B1800","price":1895.0,"currency_code":"USD","in_stock":true},{"title":"with B1200 for 1.25\" Focuser","offer_id":50995205308736,"sku":"LS50FHa1\/ B1200","price":1695.0,"currency_code":"USD","in_stock":true},{"title":"with B1200 for 2\" Focuser","offer_id":50995205341504,"sku":"LS50FHa2\/ B1200","price":1695.0,"currency_code":"USD","in_stock":true},{"title":"with B600 for 1.25\" Focuser","offer_id":50995205374272,"sku":"LS50FHa1\/ B600","price":1495.0,"currency_code":"USD","in_stock":true},{"title":"with B600 for 2\" Focuser","offer_id":50995205407040,"sku":"LS50FHa2\/ B600","price":1495.0,"currency_code":"USD","in_stock":true},{"title":"for double stacking all LS60T models including LS60MT","offer_id":50995205439808,"sku":"LS50FHa","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/Double-Stack-Filter-50F-3qt-Front.png?v=1756155187","url":"https:\/\/astroworldtelescopes.com\/products\/lunt-50mm-ha-etalon-filter-with-b3400-for-2-focuser","provider":"Astroworld Telescopes","version":"1.0","type":"link"}